<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>

<form  wicket:id ="form">
<select wicket:id="dropdownchoice"></select>

<input wicket:id="sumbit" type="submit" value="添加"/>
</form>

</body>
</html>